05 Cobalt rough idle

90

Asked by biga1970 Jul 08, 2018 at 02:40 PM about the 2006 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

I bought an 06 Cobalt for my daughter and it was running pretty decent but now it is idling real rough almost stalling , i have changed the coil pack , ignition controller , spark plugs, throttle body, evap purge valve ,air filter , fuel filter , a bunch of injector cleaner , and did the sea foam thing... it has had the ignition switch recall done , steering recall done ,
I've read so much about these cars my brain is numb... I'm going nuts trying to figure this out
I should also add the codes that keep popping up are P0300 (random misfire) and P0496 (EVAP High Purge Flow)

4 Answers
90

biga1970 answered 6 years ago

Ok I'll give that a try ... Also forgot to mention it does this chugging at idle really bad right after you put gas in it , car will actually stall out and have to let it sit a few minutes then it will restart

7 people found this helpful.
Mark helpful
90

biga1970 answered 6 years ago

Ya i get that , but it will do it if i put 2-3 gallons in it , not filling it even close to full or over full. just checked purge valve and there id vacuum on tank side ... looked over wiring and did continuity check and all seems to be ok

2 people found this helpful.
Mark helpful
10

Duane answered 5 years ago

Biga1970 ..I did the same thing replace the same thing an I'm looking for answers too ..it did the same exact thing yours is doing but now mine won't start ?? My last option it to check all grounds..what did u get for answers.i have. 06 2.4

1 people found this helpful.
Mark helpful

Guru8KPZ6 answered 4 years ago

It may be an 02 sensor for an air flow sensor the problem seems to be with timing over air fuel if it runs the basics are covered you could try testing sensors against new sensors at autozone I'm sure that they would gladly sell you a new sensor

Mark helpful

Your Answer:

Related Questions

  • 05 Cobalt rough idle 4 Answers

    I bought an 06 Cobalt for my daughter and it was running pretty decent but now it is idling real rough almost stalling , i have changed the coil pack , ignition controller , spark plugs, throttle body...

    2006 Chevrolet Cobalt LS Sedan FWD

    -

    Maintenance & Repair

  • 06 Chevy Cobalt Missfire/Rough idle 7 Answers

    I Habe A 06 Cobalt, Check Engine Light Is On. It Has A Very Rough Idle Amd Smoke Is Coming Out Of Exhaust.. Doesnt Smell Like Fuel.. I Habe Replaced Spark Plugs, Coil Pack, Icm, Amd.fuel Filter, A...

    2006 Chevrolet Cobalt LS Sedan FWD

    -

    Maintenance & Repair

  • 06 Cobalt rough idle and smells hot 3 Answers

    My 06 Cobalt started running rough and also dying at stops. It only seems to do this after the engine is warmed up and has been driven awhile. I also not a burning smell after this only outside the ...

    2006 Chevrolet Cobalt LS Sedan FWD

    -

    Maintenance & Repair

  • 06 Cobalt Rough Idle/Stall when stopping or quick deceleration 65 Answers

    Hello All, Here is the problem I have. 06 Cobalt LT 2.2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the ...

    2006 Chevrolet Cobalt LT Sedan FWD

    -

    Maintenance & Repair

  • 05' Chevy Cobalt 2 Answers

    My 05' Chevy Cobalt base model sedan was purchased used, it has 172,000 miles, and i recently noticed the coolant to be 190 F. I also noticed the coolant temp rise extremely quickly, going from 13...

    2005 Chevrolet Cobalt Sedan FWD

    -

    Maintenance & Repair

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 30 nationwide Cobalt listings starting at $1,499.

Postal Code:

Shortcuts

Search Chevrolet Cobalt Questions

CarGurus Experts

  • #1
    munron
    Reputation
    8,410
  • #2
    John Carson
    Reputation
    2,290
  • #3
    MoGo
    Reputation
    1,990
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Impala
12 Great Deals out of 113 listings starting at $5,595
Used Chevrolet Corvette
31 Great Deals out of 1,000 listings starting at $11,995
Used Chevrolet Silverado 1500
212 Great Deals out of 5,925 listings starting at $3,995
Used Honda Civic
162 Great Deals out of 3,375 listings starting at $2,230
Used Chevrolet Malibu
38 Great Deals out of 1,147 listings starting at $1,495
Used Ford F-150
296 Great Deals out of 15,534 listings starting at $1,712
Used Chevrolet Colorado
25 Great Deals out of 1,378 listings starting at $4,900
Used Ford Mustang
51 Great Deals out of 1,253 listings starting at $4,995
Used Ford Focus
20 Great Deals out of 490 listings starting at $995
Used Chevrolet Cavalier
8 listings
Used Chrysler 300
34 Great Deals out of 504 listings starting at $5,912

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.